CAJ | 학술논문

利用微波消解技术处理样品,采用原子吸收光谱法测定了我国广东、湖北、湖南、重庆、广西、江苏、福建、浙江、安徽九个不同产区淡竹叶中Zn,Fe,Cu,Mn,K,Ca,Mg,Ni,Cd,Pb,Cr,Co,Al,Se,As 15种微量元素的含量.该方法的相对标准偏差(RSD)在1.23%～3.32%之间,平均回收率在95.8%～104.2%之间.研究表明,该方法简便、快速、灵敏,适合于淡竹叶中微昔元素的测定.试验分析结果表明,不同产地淡竹叶中微量元素的含量呈现地域性差异.各地区的淡竹叶中对人体有益的元素K,Mg,Ca,Fe,Mn含量普遍较丰富;对人体有害的重金属元素,除湖南产的淡竹叶中Pb的含量稍高,广东、安徽产的淡竹叶中Cu的含量偏高外,其他产区的淡竹叶中有害重金属元素Cd,Cu,Cr,Pb,As的含量均低于<中国药典>、<药用植物及其制剂进出口绿色行业标准>及<国家标准食品卫生标准>的限量标准.该测定结果为进一步探讨淡竹叶中微量元素的含量与其功效的相关性提供了科学依据.
이용미파소해기술처리양품,채용원자흡수광보법측정료아국엄동、호북、호남、중경、엄서、강소、복건、절강、안휘구개불동산구담죽협중Zn,Fe,Cu,Mn,K,Ca,Mg,Ni,Cd,Pb,Cr,Co,Al,Se,As 15충미량원소적함량.해방법적상대표준편차(RSD)재1.23%～3.32%지간,평균회수솔재95.8%～104.2%지간.연구표명,해방법간편、쾌속、령민,괄합우담죽협중미석원소적측정.시험분석결과표명,불동산지담죽협중미량원소적함량정현지역성차이.각지구적담죽협중대인체유익적원소K,Mg,Ca,Fe,Mn함량보편교봉부;대인체유해적중금속원소,제호남산적담죽협중Pb적함량초고,엄동、안휘산적담죽협중Cu적함량편고외,기타산구적담죽협중유해중금속원소Cd,Cu,Cr,Pb,As적함량균저우<중국약전>、<약용식물급기제제진출구록색행업표준>급<국가표준식품위생표준>적한량표준.해측정결과위진일보탐토담죽협중미량원소적함량여기공효적상관성제공료과학의거.
A method of microwave digestion technique was proposed to determine the content of Zn,Fe,Cu,Mn,K,Ca,Mg,Ni,CA,Pb,Cr,Co,Al,Se and As in lophatherurn gracile brongn of different habitat by atomic absorption spectroscopy.The RSD of the method was between 1.23% and 3.32%,and the recovery rates obtained by standard addition method were between 95.8% and 104.2%.The results of the study indicate that the proposed method has the advantages of simplicity,speediness and sensitivity.It is suitable for the determination of the contents of metal elements in lophatherum gracile brongn.The experimental results alto indicated that different areas' lophantherum gracile brongn had different trace elements content.The content of trace elements K,Mg,Ca,Fe and Mn beneficial to the human body was rich.The content of the heavy metal trace element Pb in lophanlherum gracile brongn of Hunan province was slightly high.The content of the heavy metal trace element Cu in lophantherum gracile brongn of Guangdong province and Anhui province is also slightly higher.Beside,the contents of harmful trace heavy metal elements Cd,Cu,Cr,Pb and As in lophatherum gracile brongn of different habitat are all lower than the limits of Chinese Pharmacopoeia and Green Trade Standard for Importing and Exporting Medicinal Plant and Preparation and National Food Sanitation Standard.These determination results provided the scientific data for further discussing the relationship between the content of trace elements in lophantherum gracile brongn and the medicine efficacy.